#include <stdio.h>
#include <stdlib.h>

main(){
    int dividend=20;
    int divisor,quotient;
    printf("Enter a divisor: ");
    scanf("%d",&divisor);
    if (divisor==0){
        fprintf(stderr,"Zero division error!\n");
        exit(EXIT_FAILURE);
    }
    quotient=dividend/divisor;
    fprintf(stderr,"quotient = %d\n",quotient);
    exit(EXIT_SUCCESS);
}
